Home / 824,402,297.70-1,236,603,446.55-279,143,831.70

Finding the Fourth Proportional to 824,402,297.70, 1,236,603,446.55 and 279,143,831.70

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Solution

The fourth proportional to 824,402,297.70, 1,236,603,446.55 and 279,143,831.70 is: 418,715,747.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,402,297.70 : 1,236,603,446.55 = 279,143,831.70 : x
  2. Step 2: Convert to fraction form
    824,402,297.70/1,236,603,446.55 = 279,143,831.70/x
  3. Step 3: Cross multiply
    824,402,297.70x = 1,236,603,446.55 × 279,143,831.70
  4. Step 4: Simplify right side
    824,402,297.70x = 345,190,224,363,393,088
  5. Step 5: Solve for x
    x = 345,190,224,363,393,088/824,402,297.70
  6. Step 6: Final answer
    x = 418,715,747.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.